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Environmental fate & pathways

Adsorption / desorption

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Description of key information

No determination of the adsorption coefficient was possible by the HPLC screening method, Method 121 of the OECD Guidelines for Testing of Chemicals, 22 January 2001, as the method is not valid for organic acids. Using a QSAR calculation (based on the estimated partition coefficient), the adsorption coefficient of the test item was calculated to be log10 Koc -3.54.

Key value for chemical safety assessment

Koc at 20 °C:
0

Additional information

No determination of the adsorption coefficient was possible by the HPLC screening method, Method 121 of the OECD Guidelines for Testing of Chemicals, 22 January 2001, as the method is not valid for organic acids.

In place of experimental data, an estimate of the adsorption coefficient was obtained by calculation using Quantitative Structure Activity Relationships (QSAR’s). Using a QSAR calculation (based on the estimated partition coefficient), the adsorption coefficient of the test item was calculated to be log10 Koc -3.54 (Koc 0.000288).